Caulking Interior Window Sills

Caulk all cracks between the window trim and the siding by following the same procedure.

Caulking interior window sills. After inserting the tube into the gun cut the tip at a 45 degree angle keeping the tip smaller for small cracks. Silicone is the more common caulk material chosen when it comes to caulking windows. Caulking also keeps out bugs and insects that can find their way into the house through the smallest gaps and cracks.

High quality paintable latex such as white lightning s painter s preferred acrylic. Caulk used on interior windows should not emit toxic fumes and it should hold paint well. Squeeze the gun s handle until the caulking begins to ooze from the opening.

When the trim is not an integral part of the window caulk fills the space where the window and trim meet. The easiest way to caulk the inside of window frames is to use the standard tubes and a caulking gun. This eliminates the possibility of the caulk cracking and falling apart.

Apply silicone caulking material to the entire joint around the outside of the window. Before caulking your windows start by removing the old caulk from the window frame with a putty knife and cleaning off any dirt debris and old paint. Wipe away any moisture in and around the joint before using the caulk moisture will prevent the caulk from setting properly.

This is because the material is very flexible so when your home expands and contracts with heat and cold the caulk will as well. Afterwards press the tip of your caulk gun against 1 corner of the window and squeeze the trigger to apply the caulk in 1 continuous bead until you reach the other corner.